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https://github.com/GreptimeTeam/greptimedb.git
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various_type.parquet
Schema:
+-------------+-------------------------+-------------+
| column_name | data_type | is_nullable |
+-------------+-------------------------+-------------+
| c_int | Int64 | YES |
| c_float | Float64 | YES |
| c_string | Float64 | YES |
| c_bool | Boolean | YES |
| c_date | Date32 | YES |
| c_datetime | Timestamp(Second, None) | YES |
+-------------+-------------------------+-------------+
Data:
+-------+----------+----------+--------+------------+---------------------+
| c_int | c_float | c_string | c_bool | c_date | c_datetime |
+-------+----------+----------+--------+------------+---------------------+
| 1 | 1.1 | 1.11 | true | 1970-01-01 | 1970-01-01T00:00:00 |
| 2 | 2.2 | 2.22 | true | 2020-11-08 | 2020-11-08T01:00:00 |
| 3 | | 3.33 | true | 1969-12-31 | 1969-11-08T02:00:00 |
| 4 | 4.4 | | false | | |
| 5 | 6.6 | | false | 1990-01-01 | 1990-01-01T03:00:00 |
| 4 | 4000000 | | false | | |
| 4 | 0.000004 | | false | | |
+-------+----------+----------+--------+------------+---------------------+
map_to_json.parquet
Schema:
+----------+-------------------------+-------------+
| column_name | data_type | is_nullable |
+----------+-------------------------+-------------+
| id | UInt32 | NO |
| map_data | Map<String, String> | YES |
| ts | String | YES |
+----------+-------------------------+-------------+
Data:
+----+----------------------------------------+---------------------+
| id | map_data | ts |
+----+----------------------------------------+---------------------+
| 1 | {"a":"1","b":"2","c":"hello"} | 2023-01-01T10:00:00 |
| 2 | {"x":"42","y":"test"} | 2023-01-01T11:00:00 |
| 3 | {} | 2023-01-01T12:00:00 |
| 4 | {"single":"value"} | 2023-01-01T13:00:00 |
| 5 | {"nested":"data","complex":"structure"} | 2023-01-01T14:00:00 |
+----+----------------------------------------+---------------------+